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the idea that a physiological need creates an aroused tension state (drive) that motivates an organism to satisfy the need
a tendency to maintain a balanced or constant internal state; the regulation of any aspect of body chemistry, such as blood glucose, around a particular level
hierarchy of needs
maslow's pyramid of human needs, beginning at the base with physiological needs that must first be satisfied before higher-level safety needs and then psychological needs become active. (physiological, safety, belongingness, esteem, self actualization)
inflated a balloon in his stomach, monitored stomach contractions. hunger was felt when stomach contractions occurred.
If electrically stimulated, well-fed animals begin to eat; if area is destroyed, even starving animals will have no interest in food.
depresses hunger. stimulate: animal will stop eating. destroy:animal's stomach and intestines will process food more rapidly, causing it to become extremely fat.
the point at which an individual's "weight thermostat" is supposedly set. When the body falls below this weight, an increase in hunger an a lowered metabolic rate may act to restore the lost weight
an eating disorder in which a normal-weight person diets and becomes significantly underweight, yet, still feeling fat, continues to starve.
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